Harness stop motion



,May 29, 1928. 1 1,671,955

C. LAMBERT mnunss STOP mono Filed Feb. 12, 1926 24 75' Z 77 k?! 5 G Yr764 [/6 5 R INVENTOR.

A TTORNEYS.

Patented May 29, 1928.

CYRILLE LAMBERT, or LAWRENCE, mnssacnusm'rs.

HARNESS sror MOTION.

Application fil ed February 12, 1920 Serial m. 87,784.

This/invention relates to looms, audits purpose'is to stop the. loom incase either the means of suspending or holding up the harnessbreaks orbecomes slack, or the means for pullingit or, holding it down breaks orbecomes slack As shown in the drawings and specification, ;it isvappliedto what is known as the Knowles head motion but it may be used on anytype of loom where bottom straps are ,used to pull the harness down. r Iamawarethat various meanshave been devised for stopping a loom whentheoverhead suspending connection breaks and the harness drops uponsuitable trip mechanism,

' buttliis device will operate when either the top or bottom harnessstraps break or be come loose. 1

In the drawings, Fig. 1 is a side elevation showing those parts of aloom only which are necessary to understand my invention.

Fig. 2 is a vertical section looking from the left, on the line 2-2 ofFig. 1.

Fig. 3 is an elevation of one of my drop hooks.

Figs. 4, 5 and 6 are diagrammatic views showing the connection ofvarious parts and what occurs when certain of the controlling straps ormembers break. I

Fig. 7 is an elevation similar to Fig. 1, showing in detail amodification of the connections between the interfering finger and thetrip lever.

Fig. 8 shows hook.

In the drawings, C represents a loom in which there is a warp beam 1, awhip roll 2, cross girt 3 and oscillating feelers 4, 4', in operativerelation with drop wires 5, all of well known types.

The oscillating feelers are connected with mechanism of well knowncharacter Whereby when an oscillating feeler isstopped, the loom isstopped by suitable connecting mechanism.

Each harness is represented by D, and each harness is supported by oneor more top harness straps such as 20 which pass over loose pulleys 21andare attached to one arm of the harness jack 22. I

At the bottom there are bottom harness straps such as 23, 28, which areconnected and attached to another strap 24 which passes over a loosepulley 25. Another bota modified form of drop tom harness strap 26connects with the other arm of harness loose pulley 27.

kept taut and level by 'the' suitableadjus't ment of the top and bottomharness straps.

,30 passes, and at thetop a hook 41 which when the hook is held up innormal position byits wire 30 rests j ust over the long arm 50 of a triplever A. v i

Each drop hook B passes through suit able guides in a guidebox 45 whichis shown as attached to cross girt 3, and as having a lever supportingarm 46 onwhichat 51 trip lever pivots.

G represents an interfering finger which is carried by a curved armpivoted at 61 to'a suitable bracket 62fix'edto a stationary part of theloom frame 6. i i

, This finger G is so positioned thatit can move up in front of one ofthe oscillating feelers 4 and stop its oscillation, but is ordinarilyheld down as by means of a counterweight 7 0 forming part of connectingmeans jack'22and passesover a Between the endsof thest'raps 2 4 and 26,I .is a horizontal wire '30 which is'ordinarily H which connectstheinterfering finger with the short end 52 of trip lever Thisconnect-ingmeans includes a connecting rod 71 pivoted at 72 to arm 60, and fearriesthe counterweight 70. It, preferably also by means of a turnbuckle 73,is attached to the end of short arm 52.

By means of the counterweight 70 and turnbuckle 73, and by changing theweight of 70, an interfering finger Gris normal] held out of and belowthe path of an oscil lating feeler 4 and the long arm 50 of trip lever Ais held up just under the hooks 41, 41 of the various drop hooks B. i vFig. 4shows the normal position of the parts while Fig. 5 shows whathappens if one of the lower harness'straps such as 23 breaks, while Fig.6 shows what occurs if one of the top harness straps such as 20 breaks.

In either case, the horizontal wire 30 con-- The Weight of hook B willdepress long arm and lift short arm 52 of trip lever A and thereby raiseinterfering finger G into the path of an oscillating feeler 4, therebystopping the loom; v

As shown at F in Fig. 8 I may use a drop hook F which has a hook 90 atthe top but at the bottom a slot 91 instead of a hole.

As shown in Fig. 7, I may, instead of connecting means H, use connectingmeans L in which the interfering finger is carriedat the end of a sliderod 81, slidable on one of the vertical members or a post 7 secured tothe backgirt 8 of the loom. As shown 81 has slots 83 through which passguide screws 84 allowing it to slide. 7

Short arm 52 passes through a loop 85 on rod '81.

The straps 20, 23, 24, 26, pulleys 21, 25, 27; harness jack 22 and'WiIGS 30 maybe consider'ed collectively as harness controlling meansand are indicated by M.

I claim:

1. In a loom having an oscillating feeler so connected that when it isstopped, the

loom stops, a harness supported at the top by top harness straps andheld at the bottom by bottom harness straps and a horizontal wire; thecombination of a drop'hook supported'by said wire over one arm of a triplever; said trip lever; an interfering finger; means connecting theinterfering finger with the other arm of the trip lever of suchcharacter that when a drop hook drops with the Wire the interferingfinger is movedin the path of the oscillating feeler and the loom isstopped. i i

2. In a loom having an oscillating feeler so connected that when it isstopped, the V loom stops, a harness, harnesscontrollingmeans includinga horizontal wire; the'oom bination of a drop hook supported by saidwire over one arm of a trip lever; said trip lever; an interferingfinger; means connecting the interfering finger with the trip lever ofsuch character that when a drop hook drops with the wire, theinterfering finger is moved in the path of the oscillating feeler andthe loom is stopped.

' CYRILLE LAMBERT.

